Efficacy of spray flushing in the reprocessing of flexible endoscopes: A randomized controlled trial

Table 2 Teflon tube damage scale

Damage	Endoscope inspection ratings
Scratch characteristics	0 (none): No scratches visualized
	1 (mild): Superficial, with regular margins, < 1 image field in length
	2 (moderate): Deeper, with irregular margins or > 1 image field in length
	3 (severe): Deep with irregular margins
Scratch severity	0 (none): No scratches visualized
	1 (mild): < 10 scratches visualized
	2 (moderate): 10-20 scratches visualized
	3 (severe): > 20 scratches visualized
Adherent peel	0 (none): No adherent peel visualized
	1 (mild): Localized to 1 small (< 1 cm) site
	2 (moderate): Present in 2–3 locations or 1-2 cm site
	3 (severe): Present in > 3 locations or single > 2 cm site